The double hook (nonlinear chaotic circuits)

A new strange attractor exhibited by the same dynamic equation governing L.O. Chua's circuit (ibid., vol.CAS-33, p.1073-118, Nov. 1986) but with a totally different parameter set is described. The main difference between the new double-hook attractor and the double scroll is that the vector field of the new attractor has three real eigenvalues at the origin, as opposed to the one real and the two complex eigenvalues of the double scroll. The bifurcation sequence appears to differ considerably from the period-doubling route to chaos observed in the double scroll. The authors focus on the circuit realization of this attractor and reconcile experimental observations with theoretical predictions and computer simulations of its structure.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>